Improvement in mortising-machines



UNITED' STATES PATENT OFFICE.

` ENOCH J. ROWE, OF EUREKA, CALIFORNIA.

IMPROVEMENT IN MORTISING-MACHINES.

Specification forming partof Letters Patent No. 121,551, dated December 5, 1871; antedated November 27, 1871.

To all unom it may concern:

Be it known that I, ENOGH J. ROWE, of Eureka, in the county of Humboldt and State of California, have invented certain Improvements in Boring and Mortising-Machines 5 and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the annexed drawing making a part of this specification, in which- Figure l is a side elevation of my improved machine, showing the head-block for holding the material to be bored or mortised, the sliding bar which carries the auger or chisel, and the means for operating the same. Fig. 2 is a plan or top view, showing the parts above recited, and also the devices for holding the article to be operated upon. Fig. 3 is an end elevation, showing the method of adjusting the head-block and the screws for holding wagon-hubs in position while being bored and mortised. Fig. 4 is a detached view, showingv the rack or gear upon the under side of the sliding and revolving bar which carries the tools to be used. Fig. 5 is an end View of the inner bearing of the sliding and revolving' tool-stock or sliding bar, and the mechanism for allowing it to have a rotary movement or compelling it to move longitudinally.

Corresponding letters refer to corresponding parts in the several figures.

This invention relates to that class of machines which is used for boring and mortising Wagonhubs, frame-work for carriages, and for various other purposes; and it consists in the combination and arrangement of some of the parts of which it is composed, as will be more fully explained hereinafter.

In constructing machines of this character I use two platforms or bed-pieces, AAl, which are placed at a right angle to each other and joined to each other by a swivel or other suitable joint, as shown at A2, in order that the one which carries the sliding tool-stock may be turned to any desired anglewith reference to the stationaryportion of the bed so as to admit of the holebeing bored or the mortise made at different angles, or at a right angle with the axis of the thing being operated upon. These beds or platforms may be made of wood or of metal 5 but in either case the one marked A is to be furnished with two parallel guide-ways, B B, of metal, upon which the head-blocks move; and that portion, of the bed A1 is to be furnished with a piece of metal upon its under surface, as shown in Fig. 2, so that by inserting a bolt or set-screw therein it may be secured to the bench of the operator, or to any suitable plank or support, and held in any desired position for boring or mortising` at different angles. Upon the guides or ways B B are placed two head-blocks, C G1, which are capa-ble of being moved transversely thereon, and are made adjustable by means of one or more set-screws, C2, as shown in Fig. 2. These head-blocks consist of two portions, one of which is horizontal and rests upon the guides B B, the other being vertical in position, and carrying in suitable boxes upon their outer surfaces each a shaft having upon their inner ends a screw-thread, which, when wagon-hubs are to be bored or mortised, may be forced into the ends of such hub for holding it in position. These shafts are designated by D D1, one being provided with an index-wheel, D3, upon its outer end, which is provided with a series of apertures in its periphery, into which the point of a stud which is affixed to a spring, D4, enters for the purpose of preventing the hub from turning while being bored or mortised. The spring, with its pointed stud and the series of apertures, enables the operator to regulate the spaces between the holes or mortises to be made with exactness and dispatch, and without the necessity of marking them on the article previous to inserting it in the machine. For the purpose of adapting the machine for use in boring and mortising pieces of timber' of different sizes and for different purposes a table, E, is arranged to move up and down upon the inner vertical faces of the head-blocks, said blocks being provided with a series of holes, through which bolts pass, which also pass through the table E, and by which it is held in position upon the blocks. This table is in form a right angle, its lower portion serving as a resting-place for the timber while being operated upon, and the upper or vertical portion serving to keep it in position with reference to the faces of the head-blocks. This table may be adjustedvertically by means of screws E3 and E4, which pass through nuts in or upon the headblocks and through metal plates attached to the upper edges of the table, as shown in Fig. 3. In

order that the timber may be held iirmly upon the table while being operated upon a yoke, E1, is attached to its under surface and passes up upon its outer side, and is then bent forward so as to project over such timber, it being provided with a` set-screw, E2, t'or pressing upon whatever maybe upon the table and holding it in position. Upon the, swinging portion of the bed or platform there is placed a sliding bar, F, which serves as the tool-stock, its inner end being provided with an aperture for receiving the shank ot' the tool to be used, and with a set-screw t'or retaining it therein. This tool-stock is supported in brackets F1 and F2, which have in them suitable boxes for it to rotate and slide in; and it is provided at its outer end with a crank, l, for giving` to it a rotary motion. this tool-stock, but adjustable thereon, there is placed a section ot' a` gear or rack, G, with its teeth projecting downward, it being attached to the stock by means ot' boxes, which are made to clasp it and hold the same in position. l'nderneath the tool-stock and its rack there is placed a pinion-gear wheel or a sector-formed gear, H, Which is mounted upon a shatt, H2, which extends acloss the swinging portion ot' the bed and is supported in suitable boxes attached thereto. Upon the outer end ot' the shat't H2 there is placed a crank or lever, Hl, by meansof which a partial rotary movement may be imparted to the shai't and its sector, which movement will give a longitudinal movement to the tool-stock, which movement is necessary when using the same for mortising, the rotary motion necessary ior boring being imparted by the crank upon the end of the tool-stock. To prevent the tool-stock from rotating when the machine is being used for mortising there is pivoted to the inner bracket F2 a curved lever, l, which has upon it two cam-shaped projections, each of which, when Near the center ot' the lever is passed downward from the position shown in Fig. 5, presses against a spring, I1 or l2, and forces their upper ends outward, which action withdraws their upper bent ends or points attached thereto from slots or spines formed in the tooLstoek; and while thepoints ofthe springs are thus withdrawn the stock is free to rotate in its boxes and the machine may be used as a boring-machine; but when the outer end of the lever I is again turned the springs press their points into thc spline, and the tool-stock is prevented from rotating and may be used for mortising, as above described.

What I claim as my invention, and desire to secure by Letters Patent, is-

l. The combination and arrangement ol" the bed-pieces A and A and their operating parts, when constructed as shown and described, thc two bed-pieces being united by a pivot or bolt, substantially as and for the purpose set forth.

2. The combination of the spring or springs Il, lever l, and the tool-stock, substantially as and for the purpose set forth.

I. The combination of the adjustable table E, the head-blocks C U1, and the yoke El, substantially as and t'or the purpose set forth.

4. The adjustable head-blocks, in combination with the shafts l) and D1, when one ot' such shat'ts is provided with a dial-plate, substantially as and for the purpose set forth.

In testimony whereof I have signed my naine to this specification in the presence of two subscribing witnesses.

ENOCH J. ROWE. Witnesses:

JonN CARR,

J. G. CROWDEN. (173) 

